Nut-cutting tool.



A. L. STANFORD.

NUT CUTTING TOOL.

APPLICATION-FILED JUNE 1|, 1918.

1,300,039. Patented Apr. 8,1919.

INVEIV iarnnnfns'rnuronp, o'roi rcileogrtmnois. i

To all whohtz'tmay cancer 11;: I

-Be it known that I, ARTHUR L. STAN-FORD, a Citizen of the United StatQa-i'esiding at Chicago, in the county of Cook and State of Illinois, have invented certainnew 'and,useful Improvements in Nut-Cutting Tools, of which the following is a specification.

The tool of the. present invention is in-Q;

tended primarily for use in cutting. nuts from rail bolts in cases where the nutshave become'so rusted that their removal by means of a wrench is practically impossible. In circumstances of'this kind it is customary to cut the nut, by the-useofasledge andcold chisel or the like',;but this is a difficult un:

dertaking in view of the fact that the cold chisel tends to spring awayirom the". out

after each stroke of the sledge, sothat rapid progress is impossible. V

The tool of the present invention is designed to afiord a jaw for maintaining the cutter in contact with the nut as the work progresses, so that full eiiect will be realized from each stroke of the sledge or hammer,

thereby enabling the nut to be quickly cut to a point where its removal can be easily effected. p I

The inventionconsists in the features of construction. and combinations of parts hereinafter described and claimed. In the drawings:

Figure l is a side elevation of the tool nating at its upper endfin a head 7 which head, as shown in Fig. 2, ispreferablyen larged on one side only in order to reduce the extreme lateral dimensions of the tool with a View of enabling it tobe used in cases where the nut lies in close proximity to a rail splice bar or other obstruction. I

The head is provided ith asmoothbore 8 which is centrally. located with respectnto I specification of Letters'Iatent.

the bolt;

Patented Apt; 8, ieie.

Application-medium11,1315 S'eria1Noi239,363.

the lower j and the bodyof thetohl, but

is decentered with-respect to-the head itselfi The smooth bore 8 receives a bolti9 provided with an enlarged, driving head 10. Thev lower end of. the bolt is ,threadedthrough ay 7 heragon'al guide nut 11, preferablyjof double thickness to'resist'a heavy thrust, which nut is of'a size tobring one ofitsiaces into snug contact with theinner edge of the bodyl5iso that the nut will be held against turning as the bolt is screwed down during the progress of the work; As anadditionalrmeans for holding thegnutin position, and to better centralize the'thrust of the bolt, an over hangin lip-.12Mdepen ds from theouter lower edge 0 the head '7 and embraces the outer flat side of the nut atits upper-edge I The lowerlen'd ofthe-bolt abuts against 1 the upper-end of'a cylindrical tool carrier 13 which is .slidably mounted I through a bore 15 decenteredforthepurposeof reduc-,, ingthe, cross dimensions-of the tool. The

guidelug 14, which extends inwardly from the body 5 and is provided witha smooth tool carrier; on oneside. is provided with a I guide groovel6 which receivesthe inneren'd of a screw; bolt 17 enteredthroughone} side of the guide lug 14;, as'shown in Fig. 4. wedge-shaped cutting tool 18,; isg socketed within the lower end of the tool carrier in position to cut through the side ofa. nutter the purpose of permitting its removal; 3'

Inprdeiito provide for the easy retraction of the cutting tool afterthe work has been completed, acoil spring 19 is provided which encircles the tool carrier, bearing at its lower end against the guide lug 14, and at: its upper end against a flange20 onthe tool carrier. a,

,The tool is used inthe following man-new The driving bolt 9 is unscrewed to'thefdegree necessary to enable the spring to hit the cutting tool to the position shown in Fig.

1,;whichenables the toolto be appliedto the nut to be removed. ,Thereafter the-driving bolt 'w'ill be turned down to ,force' the cutting.

desirableto apply, considerable force, in turn ing thedrivin bolt to place, and the nut. 11 1 is formed" of ouble dimensions i-norder to permit a heavy turning. to --impar,ted by tool-into close contact with; thework-a 3 Itjis cutting has progressed suiiiciently to stretch the metal of the rusted nut to a point where its removal by means of a wrench can be accomplished. It has been found that it is not ordinarily necessary to out completely through the nut, since a partial cut will ordinarily open up the nut sufliciently to en'- able 1t 'to be turned off. 7,

After the cutting has progressed to a given point, the tool as a whole can be turned after the manner of a'wrench to start thenut or to ascertain whether additional cuttingwill be required to permit its removal. In removing the tool from the work, an unscrewing of the driving bolt will relieve the pressure on the tool carrier, allowing the spring to act and restore the tool carrier to normal position. The upper end of the driving bolt can be made smooth, if desired, to permitit to move freely through the smooth bore in the head,although it should, of-c'ourse, be threaded sutficiently to provide for the necessary travel through the guidenlllt '11 which receives the thrust due to the advancement of the bolt.

The 'guide'nut will be held against turning by reason of its contact with the edge of'the bo'dy 5, and 'at' the same time will advance-freely with the bolt in a longitudinal'direction when the bolt is driven down by blows from-"the sledge or hammer, returning to contact with the head 7, however, by the upward pressure of the spring 19 as soon as the hammering ceases.

By maintaining the cutting toolunder hard-serewpressure with the work when the impact of the sledge or hammeris' received, the cutting action of the tool will be greatly increased and the driving force-of the sledge or hammer used to the utmost advantage. At'the "same time thecu'tting tool will never become displaced during the time the work is progressing or until the cutting is comleted;

-I clai infl 1. Ina'to01 of the character described, the combination of a body provided with means to engage a hut, a threaded guide member mounted for -lon'gitudi1'1'al movement with respect to'the body and held against turning movement, 'a driving bolt threaded through the guide member, and a cutting member positioned to receive the impact-of the driving boltfs'iibstantially as described 2. Ina tool of the character described, the

combinatin of a body provided with means to engage a nut, a threaded guide member mounted for longitudinal movement with respect to the body and held against turning movement, a driving bolt threaded through the guide member, a cutting member positioned to receive the impact of the driving bolt, and a guide member on the body for guiding the advance of the cutting member, substantially as described.

3. In a tool of the character described, the combination of a body provided with means to engage a nut, a threaded guide'member mounted for longitudinal movement with respect to the body and held against turning movement, a driving bolt threaded through the guide member, a cutting member posi. tioned to receivethe impact of the driving bolt, a guide member on the body for guiding the advance of the cutting member, and a spring for retracting the cutting member, substantially as described.

4. In a tool of the character described, the combination of a body provided with an overhanging bored head at one end and -a jaw at the other end, a driving bolt slida-b-lc through the 'head, a guide nut through which the driving bolt is threaded, said nut having end contact with the head and side contact with the body and being slidable with respect to the body and held against rotation with respect thereto, and a cutting tool adapted to receivethe impact of the driving bolt, substantially as described.

5. In a tool of the character described, th combination of a body provided with an overhanging bored head at one'end and a jaw at the other end, a driving bolt slidable through the head, a guide nut having end contac'tw-i'th the head and sidec'onta'ct with the 'body and being slidabl'e with respect thereto, a cutting tool adapted to receive the impact of the driving bolt, and a guide lug on the body for guiding the cutting tool, substantially as describe;

6. In a tool of the character described, the combination of a body provided at one end with an overhanging head and at its other end with'a jaw, a driving bolt slidable through the head, a guide nut through which the bolt is threaded,- said guide nut having end contact with the head-andside contact with the body and being slid'able with respect to the body and held against rotation with respect thereto, a guide lug outstanding from the body, a toolcarri'er slidably mounted through the -guide1ug,'acutting tool sockete'd within the tool carrier, a spring encircling the tool carrier and bearing at one end against the guidelug, and a flange on the tool carrier against which the oppositeend of the spring b'e'ars for retracting the cutting tool, substantially as described.

\ In 3 mol of the chm'mtriluecfibeas m i t thi body lfifiiiiding abearing for m ination a, d lnember, andkl ably mounted with'respect' itojitihe" bod-Y3 a t lPositiondfb receive theniPat, 1,0

. tlii'aded membe lidablei Withhrespefc to of the d riy n g bolt; ub m yn g de 5 th -'body and held against rjtation with scribed. r u a v respect thereto, through Whiblj *"threaded; i 3 j niember the driving bolt is enb'iigm abut- ARTHURJI "IJ. STANFORD. 

